[{"data":1,"prerenderedAt":229},["ShallowReactive",2],{"project-11320540":3},{"id":4,"name":5,"line":6,"line_source":7,"title":8,"url":9,"domain":10,"maker":11,"posted_at":12,"year":13,"points":14,"comments":15,"rank_in_year":16,"shown_in_year":17,"top":18,"tier":19,"category":20,"subcategory":21,"format":22,"keywords":23,"reception":28,"sentiment":29,"stance_mix":30,"scored_comments":34,"aspects":35,"strip":39,"post_text":41,"what":42,"said":64,"maker_in_thread":140,"shape":148,"grid":153,"attempts":192,"same_week":193,"maker_shows":221,"maker_hidden":222,"reader_version":223,"card":224},"11320540","Diskache","Combine SSD with HDD on Windows","title","Show HN: Diskache – Combine SSD with HDD on Windows","https:\u002F\u002Fdiskache.io\u002F","diskache.io","lostmsu",1458422843,2016,21,19,1166,2264,52,"shown","infrastructure","disk caching","desktop_app",[24,25,26,27],"ssd cache","hdd acceleration","windows disk cache","fusion drive","curious",-0.2,{"positive":31,"neutral":32,"mixed":31,"critical":33},0,7,2,9,{"idea":36,"performance":38},{"positive":31,"critical":37},1,{"positive":31,"critical":37},[37,31,40,40,31,31,31,31,31,37,31,40,31,40,31,40,40,31,40],3,null,{"problem":43,"audience":41,"pricing":41,"motivation":55,"time_to_build":41,"stack":62,"openness":63,"stage":63,"team_size":63},{"value":44,"source":45,"evidence":46},"Slow random access and directory listing on large HDDs under Windows","commenter",[47,51],{"id":48,"by":49,"text":50},"11321304","jarfil","8TB SSDs are still kind of expensive, and when you get to fill just half of that with a few million files on a HDD, just listing the drive contents becomes painfully slow. It…",{"id":52,"by":53,"text":54},"11321118","PaulHoule","So far I am not so impressed with ssd cache of HDD; people don't perceive mean latency so much as tail latency so long as you have an HDD attached to a windows machine it will…",{"value":56,"source":57,"evidence":58},"Maker had a prototype in 2012 and finally finished it; hopes for enterprise use where cost matters","maker",[59],{"id":60,"by":11,"text":61},"11321277","That is so very true. The worst part is - I had a prototype in 2012, but never actually finished it until now. Hope this will find its place in enterprise, where every dollar…",[],"unknown",{"praise":65,"objections":72,"requests":91,"questions":103,"alternatives":111},[66],{"value":67,"source":57,"evidence":68},"Useful for slow thumbnails and large folders on HDD",[69],{"id":70,"by":11,"text":71},"11321288","That's not so true. I'm usually very annoyed, when navigating my pictures or video collection, and thumbnails appear after several seconds. Same with large folders.",[73,80,84],{"value":74,"source":45,"evidence":75},"SSD prices are now low, so the need is small",[76],{"id":77,"by":78,"text":79},"11321243","markherhold","With the now relatively-low price of SSDs, I don't personally see a huge need for this. Maybe 4+ years ago, but not now.",{"value":81,"source":45,"evidence":82},"Mean latency is less important than tail latency; HDDs stay slow",[83],{"id":52,"by":53,"text":54},{"value":85,"source":45,"evidence":86},"Few people still use desktops with separate HDDs",[87],{"id":88,"by":89,"text":90},"11322379","acqq","The other big problem is that there's less and less people using anything but the notebooks, where it's effectively either HDD or SSD.",[92,99],{"value":93,"source":45,"evidence":94},"Open source the caching and SSD handling code",[95],{"id":96,"by":97,"text":98},"11324689","farawayea","Do you want to open it up or make it possible to extend? I want to experiment with this, but not having the caching code and SSD handling code for the windows kernel doesn't…",{"value":100,"source":45,"evidence":101},"Combine RAM and SSD caching",[102],{"id":96,"by":97,"text":98},[104],{"value":105,"source":45,"evidence":106},"Would a very large virtual cache disk help, rather than RAM disk",[107],{"id":108,"by":109,"text":110},"11321112","yq","Shower thought about this: Instead of create a ULTRA FAST virtual disk by unused memory such as ramdisk, diskache.io can create a ULTRA LARGE virtual disk to cache.",[112,119,126,133],{"value":113,"source":45,"evidence":114},"Apple Fusion Drive",[115],{"id":116,"by":117,"text":118},"11321766","TazeTSchnitzel","So, this is essentially a Windows version of OS X's Fusion Drive?",{"value":120,"source":45,"evidence":121},"Intel Smart Response Technology",[122],{"id":123,"by":124,"text":125},"11321238","mastax","Well, actually: https:\u002F\u002Fen.m.wikipedia.org\u002Fwiki\u002FSmart_Response_Technology (2011)",{"value":127,"source":45,"evidence":128},"flashcache and bcache",[129],{"id":130,"by":131,"text":132},"11321907","liuliu","Or flashcache: https:\u002F\u002Fgithub.com\u002Ffacebook\u002Fflashcache Or bcache: https:\u002F\u002Fbcache.evilpiepirate.org\u002F",{"value":134,"source":45,"evidence":135},"HGST ServerCache",[136],{"id":137,"by":138,"text":139},"11343094","linker3000","WD\u002FHGST purchased the former Velobit company and their product morphed into ServerCache, which was Flash-based disk caching for Linux and Windows.…",{"comments":141,"answered":31,"key":142},4,[143,144,145],{"id":60,"text":61},{"id":70,"text":71},{"id":146,"text":147},"11321307","Not sure I understand your idea. Windows already caches reads to some degree in RAM. This project gives less speed, than RAM disk, but allows to cache much more.",{"commenters":149,"max_depth":150,"maker_replies":141,"first_comment_mins":151,"lifespan_hours":152},15,5,113,84,[154,156,158,160,161,165,168,171,174,176,178,180,181,183,184,185,188,189,191],[77,31,37,155,78,31],"project\u002Fcritical\u002Fidea",[60,31,31,157,11,37],"maker\u002Fneutral\u002Fidea",[96,31,40,159,97,31],"project\u002Fneutral\u002Fidea",[48,31,40,159,49,31],[162,31,31,163,164,31],"11321819","other\u002Fneutral\u002Fnone","theandrewbailey",[166,31,31,163,167,31],"11324198","pkroll",[169,31,31,170,164,31],"11325540","commenter\u002Fneutral\u002Fnone",[172,31,31,163,173,31],"11324293","vardump",[88,31,31,175,89,31],"other\u002Fcritical\u002Fidea",[52,37,37,177,53,31],"project\u002Fcritical\u002Fperformance",[70,37,31,179,11,37],"commenter\u002Fneutral\u002Fperformance",[116,33,40,159,117,31],[130,33,31,182,131,31],"other\u002Fneutral\u002Fidea",[108,40,40,159,109,31],[146,40,31,179,11,37],[186,141,40,159,187,31],"11320961","maxpert",[123,141,40,159,124,31],[190,141,31,159,11,37],"11321302",[137,141,40,159,138,31],[],[194,199,204,209,213,217],{"id":195,"name":196,"points":197,"category":198},"11317811","Honest Salary",314,"web_saas",{"id":200,"name":201,"points":202,"category":203},"11324166","Localkube",173,"dev_tools",{"id":205,"name":206,"points":207,"category":208},"11334764","Quantum",151,"languages",{"id":210,"name":211,"points":212,"category":208},"11310485","English syntax highlighter",147,{"id":214,"name":215,"points":216,"category":203},"11327679","Micro",101,{"id":218,"name":219,"points":220,"category":208},"11321164","Rhine",81,6,false,"v2",{"id":225,"name":5,"line":6,"ai":222,"cat":20,"year":13,"points":14,"comments":15,"rec":28,"s":29,"top":18,"kw":226,"maker":11,"domain":10,"tier":19,"attempts":31,"strip":227,"url":9,"mix":228,"praise":67,"objection":74,"sub":21},11320540,[24,25,26,27],"1033000001030303303",[31,32,31,33],1794036542307]